1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pishuonlain [190]
3 years ago
5

A 30% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 40 gallons of a 60% solution. How

many gallons of the 30% solution and 70%
solution should be mixed?
lion of the 30% solution should be mixed?
Mathematics
1 answer:
Murrr4er [49]3 years ago
5 0

Answer:10 gallons of 30% solution and 30 gallons of 70% solution should be mixed.

Step-by-step explanation:

Let x represent the number of gallons of the 30% solution that should be mixed.

Let y represent the number of gallons of the 70% solution that should be mixed.

The total number of gallons of the mixture to be made is 40. This means that

x + y = 40

The 30% solution of fertilizer is to be mixed with a 70% solution of fertilizer in order to get 40 gallons of a 60% solution. This means that

0.3x + 0.7y = 0.6 × 40

0.3x + 0.7y = 24- - - - - - - - - - - - - -1

Substituting x = 40 - y into equation 1, it becomes

0.3(40 - y) + 0.7y = 24

12 - 0.3y + 0.7y = 24

- 0.3y + 0.7y = 24 - 12

0.4y = 12

y = 12/0.4

y = 30

x = 40 - y = 40 - 30

x = 10

You might be interested in
Factor completely 4x2 - 121
anzhelika [568]

Answer:

(2x+11)x (2x-11)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
5c + 3 ≥ 6x -8<br><br> Solve the following inequality for cc. Write your answer in simplest form.
irina [24]

Answer:

c≥2(x-2) ÷ 5

Step-by-step explanation:

5c+3≥6x-8

5c ≥6x-8-3

5c≥6x-12

c≥(6x-12) ÷ 5

c≥ 2(x-2) ÷5

3 0
2 years ago
Please help ASAP!! Will give brainliest to correct answer!
snow_lady [41]

Answer:

2/4

Step-by-step explanation:

4 0
3 years ago
If the area of a triangular kite is 6 square feet and its base is 4 feet, find the height
KonstantinChe [14]
The height of the kite is 3 feet. Here’s
why;
We know that BH=2A (base times height is equal to 2 times the area) of any given triangle.
Lets plug in values;
BH=2A
4(H)=2(6)
Then simplify;
4(H)=12
Flip the equation to find the missing value;
12 divided by 4 is 3.
Check your work;
4(3)=6(2):
12=12
The height of the kite is 3 feet.
4 0
3 years ago
Major help please !!!!!!!
ExtremeBDS [4]

3 5/9 divided by -2 2/3

change the mixed numbers to improper fractions

3 5/9 = (9*3+5)/9 = 32/9

-2 2/3 = -(3*2+2)/3 = -8/3

32/9 divided by -8/3

copy dot flip

32/9 * -3/8

-96/72

divide top and bottom by 24

-4/3

=-1 1/3

Answer: - 1 1/3

4 0
3 years ago
Other questions:
  • Please help. I don't understand where to start with this one. If the slope of a strictly decreasing function at the point (a, b)
    12·2 answers
  • X+16=24hvvcgcfcycdfdxfxxdgfv​
    12·2 answers
  • Find the area of the triangle below ( example A )
    8·1 answer
  • In a 30°-60°-90° triangle, the length of the hypotenuse is 30. Find the length of the longer leg.
    7·1 answer
  • When c=3 and d=7<br> 21c + 2d - |-11|d
    14·1 answer
  • If triangle abc is equals to triangle mno then what corresponding angle is congruent to angle N
    15·2 answers
  • A cosine function is graphed below. Use the drop-down menus to describe the graph. The amplitude of the graph is __ . The equati
    10·2 answers
  • Please help this is the only question im stuck on
    13·1 answer
  • If 10 litres of petrol can cost 650 calculate the cost of 15 Litres and 25 litres​
    13·1 answer
  • 5. Jaime orders softballs for the school's softball team. An order of 12 softballs costs $108.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!